We've started to see consistent failures in the 7.x branch with the following:

* What went wrong:
Execution failed for task ':x-pack:plugin:searchable-snapshots:qa:gcs:integTestRunner'.
> Cannot get property 'test.fixtures.gcs-fixture-other.tcp.80' on extra properties extension as it does not exist

https://gradle-enterprise.elastic.co/s/5bryflowvrjsm

For some reason the Docker compose service properties are not getting set. Initial investigation looks to be some issue with either Docker compose of the corresponding Gradle plugin not returning service info synchronously.